@article{bautista_1974,  title={Uma Selaginella (Pteridophyta) do T.F. Roraima},  volume={4},  ISSN={0044-5967},  url={https://doi.org/10.1590/1809-43921974043019},  DOI={10.1590/1809-43921974043019},  number={3},  journal={Acta Amazonica},  publisher={Instituto Nacional de Pesquisas da Amazônia},  author={Bautista, Hortensia P.},  year={1974},  month={Dec},  pages={19–21} }